D-Hist® by Ortho Molecular Products is a powerful, natural formula designed to support healthy nasal passages, sinus function, and immune balance—especially during seasonal changes.
This comprehensive blend combines key nutrients and botanicals known for their role in maintaining a balanced histamine response and promoting clear, comfortable breathing. Whether you’re sensitive to environmental triggers or simply want proactive respiratory support, D-Hist® delivers targeted, effective ingredients in one convenient formula.
Key Benefits
- Supports healthy sinus and nasal passages
- Promotes balanced immune response in sensitive individuals
- Helps maintain normal mucus viscosity
- Encourages clear, comfortable breathing
Advanced Formula Includes
- Quercetin – a potent flavonoid that supports healthy histamine response
- Bromelain – a proteolytic enzyme that enhances absorption and supports sinus comfort
- Stinging Nettle Leaf – traditionally used for seasonal support
- N-Acetyl-L-Cysteine (NAC) – supports respiratory health and antioxidant activity
- Vitamin C – essential immune support
Suggested Use
- Loading Phase: Take 2 capsules, three times daily for 7–10 days (or as directed by your healthcare provider)
- Maintenance: Take 1 or more capsules daily, or as recommended
Supplement Facts (Per 2 Capules)
- Vitamin C (Ascorbic Acid USP) – 300 mg
- Quercetin Dihydrate – 400 mg
- Stinging Nettle Leaf – 400 mg
- Bromelain (2,400 GDU/g) – 100 mg
- N-Acetyl-L-Cysteine (USP) – 50 mg
Clean Formula – Free From
Gluten, wheat, soy, dairy, animal products, fish, shellfish, peanuts, tree nuts, eggs, artificial colors, sweeteners, and preservatives.
Caution
Not recommended for use during pregnancy or while nursing. Consult your healthcare provider before use.



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